Shipping package or can.



No. 652,83I. Patented July 3, I900.

' H. K, BUCK.

SHIPPING PACKAGE 0B CAN.

(Application filed Mar. 21, 1899.\

1N0 Model.)

.13.; Z l| F w V @Zfif To a whom, it may concern:

UNITED STATES PATENT Genres.

SHIPPING PACKAGE OR CAN.

SPECIFICATION forming part of Letters Patent No. 652,831

dated July 3, 1900.

Application filed March 21, 1899. Serial No. 709,911. (No model.)

Be it known that I, HARRY K. BUCK, of the city and county ofPhiladelphia,State of Pen ns'ylvania, have invented an Improvement inShipping Packages or Cans, of which the following is a specification.

My invention has reference to shipping packages or cans for caustic lyeand other substances; and it consists of certain improvements which arefully set forth in the following specification and shown in theaccompanying drawingsl I-Ieretofore it has been customary to packcaustic lye in a box having a perforated lid covered with a piece ofpaper, which may at time of use be broken through at points over theperforations and the lye or contents of the package be sifted through.It has been usual to make the package in the form of a light sheet-metalcan and with a removable outer lid adapted to shield or protect theperforated lid and paper covering.

The object of my invention is to provide a package with a perforated endor top sealed by a paper or friable layer, but so coated with a wax orresinous substance that moisture shall not penetrate through the friableor paper'layer, and, reversely, any tendency of the lye or contents ofthe package to destroy or rot the paper shall be prevented by said layeror coating of wax or resinous substance which is unacted upon by thesaid. lye. In my preferred construction I form the package of sheetmetal, in appearance resembling a can,

and to the top I attach a perforated sheetmetal lid after the same hashad itsperforations covered by a paper layer and coated on the underside with wax or resinous material unacted upon by the lye. The packageso formed may then have a removable outer lid or cover to protect thepaper against accidental puncture, and also to form a space between theperforated lid and the solid lid in which to place the circulardescriptive of the contents.

My invention will be better understood by reference tothe accompanyingdrawings, in which- Figure 1 is an elevation of a package or canembodying my improvements and showing the upper portion in section. Fig.2 is a plan view of the perforated sheet-metal lid such as package iscaustic -der surface in a thick layer, so

I commonly-employ, and Fig.3 is a similar view of a modified formthereof.

D is the body of the package or can. I B is the perforated lid at thetop, and this is clamped firmly to the upper edge of the body by a crimpb. The lid B is depressed somewhat, and its central surface is providedwith one or more perforations C.

E is a paper layer which may contain instructions and is cemented overthe upper surface of the perforated lid 13.

F is a thick coating of beeswax and resin,

which covers the under surface of the paper E where it is exposedthrough the apertures C to the contents of the package or can.

The impervious layer F also materially strengthens the paper layeragainst acciden tal perforations. Where the contents of the lye, thereis great tendency on exposure tothe air of absorbing moisture, andthereby producing a condition which would speedily rot and destroy thepaper layerlll.- However, by the interposition of the wax F the lyecannot rot the paper, and consequently the latter is fully protectedfrom its action. Much of the difliculty heretofore experienced arises inputtingup the packages, at which time the lye is contained in the bodyof the package D for a short interval before the lid B is clamped inplace. During this short interval the moisture in the atmosphere beginsto act upon the upper surface of the lye, and if the atmosphere happensto be moistthe said upper layer of the caustic lye becomes affected, soas to have strong corroding tendency upon the paper. By my improvementsthis objectionable actionis completely prevented and the paper retainsits original strength indefinitely, and is consequently in excellentcondition for shipment and storage in the stores.

By my improved construction the under perforated. portion of the lid iscoated with a body of material unacted upon bycaustic lye, which isdirectly attached to the said unas to com.- pletely bridge over andsubstantially fill the perforations and form a shield and support forthe friable layer of paper, whereby it is protected against the actionof the lye and liability of accidental rupture, but permits rupture whenthe contents are to be removed.

ico

and resinous material G is the outer cover or cap and is readilyremovable from the top of the package or can, it being employed, asbefore stated, to protect the paper layer E above the apertures. Thespace between tents. The outer paper wrapper or label about the canseals the removable lid G to the body portion in the well-known manner.

By applying the impervious layer of wax hence where it through theperforations in the lid it thus sustains the paper against accidentalbreakage. The paper is pasted directly to the top of the lid and liesperfectly flat, which is essential to permit the can to be clamped inthe sealing-machine, which rotates the can and lid in flanging down theedge of the lid. The wax and resin therefore do not interfere with theproper position of the label, but do protect it, as above set out, atthe places where it is weak. lly my construction it is seen that thepaper is, in effect, sealed to the lid both on the outside and inside,the former by the paste and the latter by the wax and resinous material.

In place of the compound of wax and resin I mayemployaprotecting-bodyconsisting of pitch, silicate of soda, or other substance or compoundunaffected by moisture and alkali.

Ordinarily the lid 13 is perforated, as at O in Fig. 2; but in place ofcompletely stamping out the apertures they may be partly cut out, asindicated at Oin Fig. 3, in which case when it is desired to pour outthe contents these pieces 0 are bent inward by pressing upon the paperimmediately over them, said action depressing the sheet-metal pieces andrupturing the paper at the same time.

Having now described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

l. A package or can having a perforated lid, combined with a friablelayer directly attached to the outside surface of the lid so as to coverthe perforations therein, and a body of material such as wax or resin ormixtures of these unacted upon by caustic lye directly attached to thein nersurface of the perforated lid in a thick layerso as to completelybridge over and fill the perforations and be attached directly to theunder surface of the friable layer where exposed through theperforations of the lid to form a direct shield and support for the saidfriable layer whereby it is protected against the action of the lye andliability of accidental rupture but permits rupture when the contentsare to be removed.

2. A package or can having a perforated lid, combined with a friablelayer dircctlyattaohed to the outside surface of the lid so as to coverthe perforations therein, and a body of materials such as wax or resinor mixtures of these'unacted upon by caustic lye directly attached tothe innersurfacc of the perforated lid in a thick layer so as tocompletelybridgc over the perforations and form adirect shield andsupport for the friable layer whereby it is protected against the actionof the lye and liability of accidental rupture but permits rupture whenthe contents are to be removed.

In testimony of which invention l have here unto set my hand.

HARRY K. lll ICK. Witnesses:

R. M. HUNTER, R. M. KELLY.

